Envelope-machine



(No Modl.) I s sheets-sheet 1.

A. D. TYRREL.

ENVELOPE MACHINE. No. 408,200. Patented July 30, 1889.

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N. PLTER Pnoklithugraphar. washington, DA C.

(No Model.) 8 Sheets- Sheet 2. A. D. TYRREL. ENVELOPE MACHINE.

No. 408,200. Patented July 30, 1889.

om ...U e e h S V W e e h s 8 um WM TE ...w ,n.w AN E ,u d o M o m Patented July 30, 1889.

(No Model.) y 8 Sheets-Sheet 4. A. D.V TYRREL. ENVELOPE MACHINE.

No. 408,200. Patented Jul-y 30, 1889r d wf/22. @@EZ, W @am f g n PETERS. mmmmgmpher. wahmgmn. nc.

(No Model.) l 8 Sheets-Sheet 5. A. D. TYRREL. ENVELOPB MACHINE.

N0. 408,200. Patented July 30, 1809'.

N. PETERS. Phuwuchngmphnr, washington. D. C,

8 Sheets-Sheet 6.

{No Model.)

A. D. TYRREL. ENVBLOPB MACHINE.

No. 408,200. Patented July 30, 1889.

N. PETERS, Phnmumugmpher, wnshngmn. uy C.

8 Sheets-Sheet 7.

(No Model.)

A. D. TYRREL.

ENVELOPB MACHINE.

180.408,200. Patented July 30, 1880.

(No Model.) 8 sheets-sheet 8.

A. D. TYRREL.

y ENVELOPE MACHINE. No. 408,200. Patented July 30, 1889.

WMM/magy mwMo/c UNITED STATES PATENT OFFICE.

ALVIN D. TYRREL, OF SOUTH HADLEY FALLS, ASSIGNOR OF ONE-HALF TO l-I. L. NEVELL, OF SPRINGFIELD, MASSACHUSETTS.

ENVELOPE-IVIACHINE.

SPECIFICATION forming part of Letters Patent No. 408,200, dated July 30, 1889.

Application filed February 17, 1888. Serial No. 264,441. (No model.)

To all whom it may concern.-

Be it known that I, ALVIN D. TYRREL, a citizen of the United States of America, residing at South Hadley Falls, in the county of Hampshire and State of Massachusetts, have invented new and useful Improvements in Envelope-Machines, of which the following is a specification.

This invention relates to improvements in envelope-machines of the reciprocating class, the object thereof being to improve such machines With respect to certain of the instruinentalities comprised therein; and the invent-ion consists in the various constructions and combinations of parts, all substantially as will be hereinafter fully described, and finally pointed out in the claims.

In the accompanying` sheets of drawings a form of machine embracing the various features of my invention is illustrated, in which similar characters of reference indicate corresponding parts in all the views, Figure 1 being a side elevation, and Fig. 2 a front view, thereof. Fig. 3 is a plan view with some parts broken away and in horizontal section. Fig. 4 is a vertical cross-section of the machine on the plane of the driving-shaft and folderplunger. Figs. 5, 6, and 7 are enlarged views illustrative of the envelope-blank-elevating mechanism, Fig. 5 being in part a front ele!- vation and in part a vertical section on a plane transversely of the machine. Fig. Gis a view in elevation, taken at right angles to the view Fig. 5, of a part of the elevating device as seen at the left of the line a a, the parts at the right of said line being' shown in dotted lines, and the relative location of the rockershaft (seen in said preceding figure) is also shown; and Fig. 7 is a horizontal section on line b Z), Fig. 5. Fig. 8 is an enlarged longi tudinal vertical section of a part of the machine on the line c c, Fig. 3. Fig. 0 is an elevation at the end of the back-flap folder, the same being in its Opened position. Fig. 10 is a plan view of same, and Fig. 11 is a vertical section of the same, on the line (Zd. Figs. 12

and 13 are enlarged views, in side elevation and plan, respectively, of the mechanism for removing the envelopes from the drier-drum, Fig. 12 showing the parts inside the line e e, Fig. 13.

Figs. 14 aud 15 are views in elevavation to illustrate operating mechanisms hereinafter referred to.

The improved mechanism for moving the pile of envelope-blanks upward, so as to keep its upper surface Within proper Working distance from the lower edge of the picker or gummer, Will be now described.

The front portion of the table or bed A of the machine under the picker mechanism is recessed, as at 18, and at one side of such opening is' a downwardlyextending fixed standard 20, provided with suitable grooves or Ways 21 for the vertical play therein of the vertical standard 22 of the blank-supporting table 23 for supporting and elevating the pile F2 of envelope-blanks. ,The said elevatorstandard 22 on one face is provided with a vertical series of ratchet-teeth 24, formed on or secured thereto. One ormore spring pawls or detents 25 are pivotally hung in the station ary upright 2O,w'hicl1 take into the ratchetteeth of the vertically-movable platen-standard.

B represents a horizontal rocker-shaft hung in suitable journals or brackets 2G above the table A, which is to be oscillated by means of a radial arm 17 thereon and connecting-rod 27, actuated in one direction by a cam 18 on the main shaft E and in the other direction by a spring suitably applied to said lever, all as common in cam-and-lever movements in envelope-machines, and as particularly seen in Fig. 14. On said oscillating shaft are two radial arms or levers 29 and 30, adjustable thereon, and having their ends extended into proximity with the upper end portion of a vertically-disposed slide-bar 31, which is permitted to be reciprocated in and through the guide-groove 32 of the fixed standard 20. The upper end of said slide-bar 31 is provided with an offset-hook or angular lug 33, having its opening 34 of greater Width than the thick.- ness of the end of the arm 30. The said slidebar 31 carries a spring pawl 35, which is adapted to take into the said ratchet-teeth 24 of the movable table-standard 22. The ends of the pawls 25 and 35, which are farthest from their pivotal points, are provided with extensions against which a cam-shaft 36 bears, whereby, on a rotation of the cam-shaft, the said pawls may be forced from their engagement with said ratchet-bars 24, then permitting said elevator blank-supporting table to be continuously slid either up or down, as desired. Y

37 represents a roller or small drum journaled in the fixed standard 20, the edges of which are preferably bushed with rubber, and to its rim is secured by its one end a flexible band or belt r, which by its other end is fastened to the lower end of the movable standard 22. Vith t-he said standard in its lowered position and on a release of the pawls 35 25 and a turning of said drum 37 through the hand-wheel 38, the said elevator is raised to any height desired.

The clamps C for holding the envelopeblanks upon the elevating blank-supporting table (here shown as in their raised or releasing positions) are to be operated from the oscillation of the rocker-shaft B, and two radial arms or levers therefor are provided, one 39 opposite the right-hand end of the platen-recess 18, and the said arm 29, which plays in conjunction with the upper end of slide-rod 31, may serve as the other; or a separate lever-arm between the rocker-shaft B and the one clamp C may be employed.

Each envelope-blank clamp C consists of a frame formed of parallel arms 40 40, pivoted to the edge of a lug 41, secured on the inside of the front arch D and extending transversely of the machine a suitable distance and there provided with a cross-arm 42. The said cross-arms 42 are by their outer ends linked to the ends of the radial arms 29 39, as seen On each revolution of the main shaft through the lever 27 the shaft B is rocked in a manner to carry the clamps down upon the pile of blanks, and also through the downward thrust of the end of radial arm 29 on the upper shoulder or end 45 of slide-bar 3]. said bar is depressed, carrying its pawl downwardly. The lextent of the rearward roll of shaft B and the downward throw of the radial arms 29 39 will be greater as blank after blank is removed from the pile F2 on the blank-supporting table, of course permitting a greater downward slide of the pawl-carrying bar 3l until its downward slide has been so far as to permit the pawl 35 to be t'hrown under a ratchet-tooth next below it, when, on the upward throw of the said slide-bar through the arm 30 on the return-roll of shaft B, the said standard 22 and blank-supporting table are carried upwardly the distance of one tooth.

It is to be understood that the number of oscillations of shaft B, when the pawl-carrying slide-bar 3l will reciprocate without engaging a tooth Vof the rack 24 next below the operating face of the pawl 35, will be equal to the number of times the perpendicular distance between the operating faces of two pawl-teeth of said rack 24 is greater than the thickness of the envelope-blanks-as, for instance, if the distance between two ratchetteeth 24 is one-eighth of' an inch and the thickness of the blanks is one seventy-second of an inch, the shaft B may rock nine times before the elevator-platen will be moved upwardly; and it is to be understood that under such conditions as just cited the upper surface of the pile of blanks will always occupy a height within a limit of one-eighth of an inch.

F represents the carriage for being projected under the uppermost envelope-blank of the pile for conveying such blank rearwardly to a position over the folder-frame and box, all formed as usual; and the said carrier is to be moved by the common leverand-link connection between the rear end of the carrier and the actuating-cam on the main shaft, whereby the back-and-forth horizontal play of said carrier is had through suitable ways 48 of the frame 49, having the rectangular opening 5() over the flap-folder wings H in, or about in, the same horizontal plane as that of the top of the said pile of envelope-blanks. As seen in Figs. 3 and 8, the said frame 49, at its front edge, is provided with one or more forwardly-extending headed studs g, upon which downwardly-extended lugs 5l, formed on arms 52 of a frame K, loosely play against the springs 54, At the rear ends of the arms 52 the frame 49 is recessed as at 55, and said movable frame K is provided with forwardly-projecting horizontal fingers 56, located in, or a little higher than, the horizontal plane of the forward portion of the carriage F. As shown, there is a space 57 between the forward portions of said fingers 56 and the arms 52 of the frame K, with a joining-web or solid portion 58 between the rear portions thereof.

Assuming the parts to be in the positions seen in the drawings, Figs. l, 2, 3, and 8--that is, with the picker M uppermost, the clamps C released from the pile of blanks, and the carriage F slid forward under the uppermost blank -then on the backward race of the carriage F, it, by its forward cross-bar 59, abuts against the web portion 58 of the frame K and forces the same inwardly against the springs 54, so as to carry the fingers 56 back away from the pile of blanks and then so hold them back as long as the carriage is in its extreme rearmost position. The carrier then moves forward, (while the clamps are raised and as the picker is moving upwardly, lifting a fresh blank until the upper face of such blank strikes the lower side of the raised clamps to free it from its adhesion to the picker,) the abutmentby saidcross-bar against said frame K is removed, thus releasing said frame to its springaction, to be thrust forward under the blank raised by the picker, thus insuring a support for the back-fiap portion of the then uppermost blank and a smooth surface over which the said blank may be guided in its rearward'travel.

As well known in envelope-machines, the flap-folders consist of two o'ppositely-disposed IOO IIO

sets of wings-viz.,front and back flap folder wings and end-folder wings, each hinged to the bed A at the borders of the rectangular aperture G0 in the bed, and directly under the said rect-angular opening 50 in the elevated carriage supporting frame 49, and through which the folder-plunger J, guided in the rear arched standard, reciprocates, the folding being against the trap-door G1, which is raised therefor at the proper time and is then swung downwardly to permit the discharge of the pasted and folded envelope to the drier. 'The back flap folder G2 here shown is provided with extended trunnions or pintles 63, and the end bearing-blocks 64 04 have vertical slots G5, in and through which said pintles bear, and said blocks are provided above said bearings with chambered extensions or boxes 60, in the lower ends of which are plugs 67, whose lower ends rest upon the said folder-pintles and are pressed downwardly thereupon by the spiral springs GS, between their upper sides and the top of the said boxes. By this means the flap-folder is adaptable for use in manufacturing envelopes from varying thicknesses of blanks, and other of the tlap-folderstinore or less thereof) ,may be similarly mounted, if desired.

As seen in Fig. 4, each end-iiap-folder wing f is hinged on a common pin or journal-rod h, and there is also looselyT and longitudinally disposed on said journal-rod 7L a tubular spindle t', having an inwardly-extended peripheral portion j. The shank of each cndfolder wing is recessed, as seen at k, sufficiently to receive the said extended peripheral portion j, when the same is rolled in one direction during the operation of the machine. Each of said end-folder wings f is operated through the usual connecting-rod l between its outer side and the upper end of an angular lever m, to the lower end of which the common lever actuated by the shaft-cam is connected. A downwardly-extending lever n from the tubular spindle t' is by its lower end connected through rod p with an intermediate portion of the upper vleg of the said angular lever nz, so that under the operation of the parts to close the end-folderwings downwardly against the then rising trap-door G1 to fold said extended portion j of the tubular spindle is disposed within said recess 1c of the end-folder shank. Then on its opening said extended portion j is rolled downwardly to bear against the folded end of the envelope, moving still farther downwardly than as shown before the envelope is discharged, so that the concentric peripheral surfacej is beyond and out of contact with said folded end of the envelope, and leaving such envelope, as to its said folded ends, freed from any bind thereon by the shanks of the folders and unobstructed to insure greater certainty of its discharge,

Located below the table A in the vertical plane across the folder-box mechanism is a drum L, loosely mounted on a sleeve of the main shaft E and adapted to be rotated independently thereof and at a different rate of speed therefrom. The periphery of said drum is provided with envelope-receiving pockets formed by the spaces between the substantially radial arms or spurs 71 of said drum. Said drum on its inner periphery is provided with ratchet-teeth 7 3, against which a pawl 7 4 plays, which pawl is pivotally hung intermediate of its length to one end of an angular lever 75, hung, as at 7 0, in a stationary bracket 77, secured on the frame of the machine. A spring 78 is applied between the outer end of the pawl 74 and one leg 80 of the angular lever for the purpose of keeping same to its operative action. A lever-arm or connecting-rod 79, actuated by a suitable cam z2. on the main shaft, and a spring z3, (see Fig. 15,) engages the said leg 80 of said angular lever, whereby at each rotation of the main shaft the pawl 74 is actuated to drive thc drum forward in the direction of the arrow 82, Fig. 1, a distance equal to that between two of the drum-pockets. The said drum or drier-rack L is outside of its periphery for the greater portion thereof-as, for instance, between the points 83 and S4surrounded by one or more arc-shaped wire or other suitable coniining or stay devices, as seen at S5, and also beyond and parallel with the peripheral line of the drum, just outside of the ends of the spurs 71, are similarly-arranged arcshaped confining-wires or stay devices S6,the said wires S5 being for the purpose of retaining the envelopes in the drier as the same is rotated, and the outer wires 86 are for securing the envelopes againstany accidental endwise movement in the drier-drum.

Located at the front side of the machine, on suitable brackets thereof and between the said drier-rack and the envelope-receiving box or board 90, is a suitable stationary open frame 91, having opposing side walls or boards 92, which are provided with suitablyformed guiding slots or ways, having any proper direction or contour from front to rear of said boards, asseen at93. Through said slots 93 play horizontal pintles or studs 94 of conn ecting-rods 95, extending therefrom, to a suitable cam-actuated lever-arm-as the one -which also controls the motion of said envelope-blank carriage F, and within said frame 91, pivotally hung on said pintles 94, is a carrier-frame Q,co1nprising sidewalls 98, joined by a suitable cross-bracing 99, said side walls being provided with angular slots 100, oppositely disposed, through which is.

passed a stationary rod 101. of the stationary frame 91.

At the rear outer portion of each side wall 98, in suitably-aligned brackets or ear-pieces 102 thereof, is a rotatable rod or spindle 103, carrying at its outer end portions fingers 104, which are capable of being swung around to bear by their ends against the cross-bracing' 99 at the forward end of said frame Q. The outer ends of the said lingers 104 are preferably joined by a connecting-brace 160. A

spiral spring 105, coiled around each of said rods and by one end joined thereto and by its other fixed to one of the brackets 102, insures, normally, a gripping action by said fingers against said forward side of the said frame Q, as indicated by dott-ed lines in Fig. 13. One of said fingers, at each side of the carrying-frame Q, is provided with a radial arm 106, having a vertically-extending pin 107, intersecting the horizontal plane occupied by a pin 108 of the frame 91. There is also secured on each outer side of the frame Q, inside of the pivotal point of one of said fingers 104, a spring-catch, (here shown as consisting of a pawl 110,) pivotally secured to the side 98 of the carrier-frame, having at its outer end a hook or lug, and intermediate of its ends provided with an outwardly-projecting cam or inclined extension 112. The edge or periphery of said pivotal portion or hub of the finger 104 is notched as at 113.

The operation of the carrier device described is as follows: With the frame Q in its foremost position, as seen'in the drawings, and with the spring-fingers 104 opened, then on the drawing of said frame Q backward through the connecting-rods 95, the outer ends of which are made to follow aline coincident to that pursued by the slot 93, said frame is carried to a position in proximity to the periphery of the drier-drum L, and the action of the stationary cross-rod 101, within the angular slots 100 of said frame-sides, is such as to swing said frame Q into a position substantially as shown in dotted lines, Fig. 12- that is, with its foremost side backed in toward the drier-drum and parallel with and in proper relation to an envelope in said drier, so that on the abutment of the inclined or cam surfaces 112 of the spring-pawls 110 against the stationary proj ect-ions 115, which are provided so as to extend from the inner sides of the Walls 92 to intersect the lines traversed by said cam portions of the springpawls, the spring-'iingers 104 will be released to close and vgrip the envelope in the nearest drier-pocket, when, through the movement of the connecting-rods 95, the frame Q, with the gripped envelope, is caused to retrace its course and to arrive in the position shown in the drawings, and on the abutment of the pins 107 of the radial finger-arms 106 against the stationary pins 108, as the said frame Q finishes its forward travel, the said springfingers are again forced open, to be so held under the action of the spring-catches, substantially as described. Located to extend into a plane across the travel of' the lower edge of the envelope when carried by the devices of said frame Q from the drier-drum to the place of delivery at the counter board or box at 90 are rigid fingers or lugs 120, extending radially and upwardly from a rock-shaft 121, supported in suitable bearings of the stationary table 122 at the front of the machine, and said rock-shaft has a downwardlyextending projection 123, terminating in an arc-shaped arm 124, which lies alongside a portion of the periphery of a ratchet-wheel 125, having a suitable fixed number of teeth, said ratchet being rotatable on a fixed axial shaft 137 in a suit-able fixed bracket, as 126. To the outer side of said ratchet-wheel is fixed a disk 127, having for a certain fraction of its periphery an extended or cam surface,

as c, on the inner part of the edge of said disk; and also starting from a point opposite the end of such peripheral cam on the other or outer part of the edge of said disk is another extended or cam surface, as seen at w,

and in practice it is preferable to have the ratchet comprise fifty teeth and the disk two et teeth when said arc shaped arm is de.

pressed enough to permit.

133 represents a spring detent or catch secured on the stationary table and adapted by its tooth 134 to engage the ratchet and prevent any possible backward rotation.

t represents a Y-shaped lever pivotally hung near its crotch in a stationary bracket or hanger suitably supported, and to its median leg 136 is secured one end of a connecting-rod 157, which by its inner end is secured to the laterally-movable receiving board or box 90.

As each envelope is conveyed by the carrier-frame Q past the lugs 120, said lugs are tilted downwardly, rocking their carryingshaft, so as to depress the arm 124, whereby the pawl carried by the tilting arm is permitted to drop into a tooth of the ratchetwheel when, on the simultaneous swinging of said lever, the pawl carries the ratchet forward the distance of a tooth, securing a fractional rotation of the cam-disk. With one leg 140 of the Y-lever on the end of the inner semicircular cam-face and the receivingbox drawn to the right, as seen in Fig. 3, after twenty-five envelopes have been carried out from the drier-drum to said delivery-box, successively tripping the ratchet-guard arm 124, permitting the ratchet-wheel to be rotated half around, the end of the inner cam c, having been passed away from under the inner leg of said Y-lever and bringing the end of the outer cam edge w under the end of the outer; leg 141 of said Y-lever, said lever is tilted, so as to force the connecting-rod inwardly, moving said envelope delivery-box laterally of the machine to the left, where it will remain until twenty-five more envelopes have been delivered.

What I claim as my invention is- 1. In an envelope-machine, the combination, with suitable fixed guiding-ways thereof,

IOO

IIO

of a movable upright 22, carrying the blanksupporting table and having a ratchet-bar 24, a slide-bar provided with aspring-pawl adapted to engage the teeth of said ratchet-bar, a rock-shaft, and a connection,substantially as described, between the same and said pawlcarrying slide-bar, whereby the latter is reciproeated on a rocking of said rock-shaft, and a detent 25, for the purpose set forth.

2. In an envelope-machine, the combination, with a fixed standard 20, having suitable guiding-ways therein provided with the cam-shaft 3G, and having the roller 37, of a movable `upright 22, carrying the blank-supporting table, and having a ratchet-bar 24, the detent 25, and a flexible connection, substantially as described, by its one end secured to said upright and by its other to said roller, a slide-bar 31, provided with the spring-pawl 35, adapted to engage the teeth of said ratchet-bar, the rock-shaft I3, and a connection between same'and said slide-bar, for the purpose set forth.

In an envelope-machine, the combination, with the upright D, having the lugs 41 41, and ainovable envelope-blauk-supporting table, of a pair of clamp-frames C C, pivoted to said lugs 41, the rock-shaft B, having radial arms, as 29 39, and the links 43, connecting said radial arms and said clamp-frames, substantiallyas and for the purpose described.

4. In an envelope-machine, the combination, with the envelope-blank carrier F, having the cross-bar 59` and its stationary support and guideway 49, provided with the forwardly-extendin g headed stu ds g, of the frame K, comprising the arms 52, with apertured lugs 51, the. ngers 5G, and the rearwardlydisposed joining-web 5S, and the springs surrounding said stud g between said lugs and the f ront of the carrier-support, acting to project said frame K to its forward extent, substantially as and for the purpose described.

5. In an envelope-machine, a flap-folder wing supported in the bed on spring journalbearings, whereby it is capable of a yielding pressure, for the purpose described.

G. In an envelope-machine, the combination, with a flap-folder having the trunnions or pintles 63, of the boxes or end bearings comprising the bearing-blocks G4, havin g vertically-extended slots 65, with upper chainbered extensions or boxes 66, and the springs GS, for the purpose described.

7'. In an envelope-machine, the combination, with the vibrating folder-wing, of the tubular spindle having the extended peripheral surface j, arranged with its axis in the pivotal line of the folder-win g, and said folderwing and tubular spindle operated to simultaneously roll in opposite directions, substantially as and for the purpose set forth.

S. In an em-elope-maehine, a flap-folder wing f, pivoted on a longitudinal j ournal-rod 71.., and having a recessed shank it, a tubular spindle Ii, surrounding' said journal-pin, having a longitudinal peripheral extension j and a radial lever n, in combination with a pivotally-hung and suitably-actuated angular lever m, and connecting-rod Zbetween one end of said angular leverand an outer portion of said pivoted wing j', and a connecting-rod p between said radial arm n and the arm of said angular lever, all substantially as shown and described.

9. In an envelope-machine, the combination, with a stationary frame 91, comprising side boards 92, having suitable opposing guiding slots or ways 93, and the cross-rod 101, ot the carrier-frame Q, comprising the side walls 9S, having the opposing angular slots 100, and the studs 94, extending laterally therefrom through said slots 93,said carrier-frame being provided with suitable envelope elasping and releasing devices, substantially as described, andthe reciprocating connecting-rods 95, connccted to said studs, for the purpose set forth.

10. In an envelope-machine, the combination, with the stationary frame comprising the side boards 92, having the opposite slots or ways 03, the abutments 108 108 and 115 115, the cross-rod 101, and vthe cani-edged springcatches 110, of the carrier-frame Q, comprising the side walls 98,having the opposing angular slots 100, the cross-bracing strips 99, and the studs 94, extending laterally from said side walls through said slots 93, said carrierframe having at its forward port-ions springfingers 104, with notched hubs having radial arms 10G, provided with studsv 107, and the reeiprocatory connectingrods 95, substantially as and for the purpose described.

11. In an envelope-machine, the combination, with a suitably supported rotatable ratchet-wheel hc ving a fixed number of teeth adapted to be rotated to the extent of one tooth at each delivery of an envelope from the machine, said ratchet-wheel being provided at its one side with adisk secured thereto, having at one edge of its periphery an extended or cam face, and having on the other edge of its periphery, at a certain distance around said periphery,'another extended or cam face, of a laterally-movable delivery-box 90, the Y-lever pivoted in a suitable stationary bracket and having its branch legs arranged to extend into the plane of rotation of said cam-faces, and a con nectin g-rod between said Y-lever and said delivery-board, substantially as described.

12. In an envelope-machine, the combination, with a suitably supported rotatable ratchet-wheel having a fixed number of teeth adapted to be rotated to the extent of one tooth at each delivery ot' an envelope from the machine, said ratchet-wheel being provided at its one side with a disk secured thereto having at one edge of its periphery an extended or cani face, and having' on the other edge of its periphery, at a desired distance around said periphery from said cam-face, another extended or cani face, of a laterallymovable envelope delivery-box, a rock-shaft 121, supported in suitable xed bearings hav- IIO ing radial lugs which extend across the path of travel of the envelopes when the same are discharged from the machine, and having the offset arc-shaped guard-arm 124, adjusted no1'- mally to lie opposite the peripheral -line of said ratchet-Wheel, the Yelever pvcted in a suitable stationary bracket and having its branched legs arranged to extend into the plane of rotation of said cam-faces, and a connecting-rod between said Y-lever and said 1o movable delivery-board, substantially as and for the purpose described.

` ALVIN D. TYRREL. Witnesses:

WM. S. BELLOWS, G. M. CHAMBERLAIN. 

